Crimping-machine.



P ATENTED MAY Z, 1905.

0. B. MUDONA LD GRIMPING MACHINE. APPLICATION FILED OCT. 23,1903- NITED STATES Patented May 2, 1905.

CHARLES B. MCDONALD, OF CHICAGO, ILLINOIS.

ORIMPING-MACHINE.

SPECIFICATION forming part of Letters Patent No. '78 *,932, dated May 2, 1905.

Application filed October 23,1903. Serial No. 178,177.

To all whom it may concern:

Be it known that I, CHARLES B. MCDONALD. acitizen of the United States, residing at Chicago,in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Crimping-Machines, of which the following is a specification.

My present invention is concerned, primarily, with a machine for crimping the lids onto the tops of lard or other similar tin pails, although it will be understood that some features of my invention might be used for other purposes.

To illustrate my invention, I annex heret a sheet of drawings, in which the same reference characters are used to designate identical parts in all the figures, of which Figure 1 is a perspective view of the complete machine. Fig. 2 is an enlarged detail of a portion of the machine with the operative parts thereof in central vertical section. Fig. 3 is a view of a portion of the mechanism shown in Fig. 2, but with the parts not in operative position; and Fig. 4 is a detail through the end of .one of the crimping-roller levers,

showing the adjustment thereof.

In carrying out my invention 1 preferably provide a base 10, which may be mounted upon rollers 11, by which it can be conveniently transported to any part of the shop where itmay be needed. Projecting upward from the base is a standard 12, the upper end of which is bent over at right angles and terminatesin the vertical bearing 13. Located directly beneath the bearing 13 is another vertical bearing 14, supported from the standard 12 by the bracket 15. The vertical driving-shaft 16 is journaled in these hearings and is provided with the belt-wheel 17 upon its upper end, to which power is applied through the belt 18 from the belt-pulley 19 on the driving-shaft 20, which is journaled in suitable bearings supported upon the pedes: tals 21 and 22, projecting upward from the base 10. The loose and fixed belt-wheels 23 and 24 are loosely mounted upon and secured, respectively, on the shaft 20. To change the direction of the belt 18, I employ the pair of idle pulleys 25, which are journaled upon suitable bearing-studs supported by the bracket 26, projecting rearwardly from the upper portion of the standard 12.

Formed in or secured upon the side of the standard 12 adjacent to the shaft 16 is a set of ways 27 in which is adjustably mounted a supporting-bracket 28, which is conveniently secured in any desired position of adjustment by the set-screws 29. This bracket 28-is provided with the vertical bearing sleeve 30, which is located directly beneath the bearings 13 and 14 and receives the sliding rod 31, which has the su pporting-disk 32 secured upon the upper end thereof. The lower end of the rod 31 is pivoted between the ears 33, formed on the outer end of the lever 34 of the first class, which is fulcrumed on the bracket 28 at 35 and has the link'36 pivoted to its rear end at 37. The link 36 is pivoted at 38 to the treadle 39, pivoted to the standard 12. An adjustable set-screw 40, screwed into the base 10 directly beneath the treadle 39, serves to limit the upward movement of the support ing-disk 32 as it is thrown upward by the downward movement of the treadle. A helically-coiled expanding-spring 41 is preferably interposed between the under side of the bracket 28 and the upper side of the lever 34 to assist gravity in returning the supporting the two disks, serves to keep the lower one,-

44, down as far as it will go. Pivoted between the pairs of ears 46, formed on the periphery of the disk 44, is the pair of crimping-roller levers 47. While I have shown a pair of these levers with the crimping-rollers 48 journaled on the bottom thereof, it will be understood that I might use more or fewer. The upper ends of these levers 47 have the diagonal cam-slots 49 therein, by which the levers, and incidentally the disk 44, are sunported from the disk 43 by means of the pins extending through these slots and secured in the pairs of ears 51, located in the periphcry of the disk 43 above the ears 46 of the disk 44. The roller-supporting disk 44 has preferably associated therewith a clampingdisk 52, which is of the proper size to rest upon the cover of the pail upon which the head is to be crimped. This disk 52 is provided with the short upwardly-extending hub 53, the upper portion of which fits loosely about the bottom of the shaft 16, while the aperture extending therethrough has the lower portion enlarged, so as to form the annular shoulder 54, which in the inoperative position of the apparatus rests upon the head 55 of the set-screw 56, which is screwed into the end of the shaft 16. The disk 44 is provided with the hub 57, which rests upon and surrounds the smaller hub 53, a set of antifriction-balls 58 being preferably interposed between the adjacent surfaces of the two hubs, so that when the clamping-disk 52 is contacted by the top of the pail as it is raised into position by the treadle 39 it will ceaserotating, while the rotation of the shaft 16 and the connected disks 43 and 44 continues. The exact position of the crimping-rollers 48 upon their supporting-levers 47 is determined by the adjustment shown in Fig. 4, where it willbe seen that the lower end 59 of the lever is reduced and the upper portion of the reduced surface screw-threaded. A retaining-screw 60 is screwed into the bottom of the lever 47, and the crimping-roller 48 rests on the head thereof. The lower end of the reduced portion 59 Y is preferably smooth and fits into the correspondingly-sized circular recess 61, formed in the upper surface of the roller 48. A pair of jam-nuts 62 and 63, screwed upon the reduced portion 59, serve, in connection with the screw 60, to accurately determine the vertical position of the crimping-rollers 48, which have to be adjusted carefully to work effectively.

The operation of the apparatus will now be apparent. The pail with the lid in place is placed concentrically on the supporting-plate 32, which is preferably provided with guiding-rings 64 or other gage mechanism on its surface. While in this position of the parts the head of the can is below and within the rollers, so that they normally stand outside of the periphery and also the plane of the head to be crimped. The treadle 39 being depressed, the support 32 is raised and the lid of the pail in its ascent contacts with the under surface of the clamping-plate 52, which as it rises carries with it the disk 44, resting thereon. The upward movement of the disk 44 causes the crimping-levers 47 to swing inward on account of the diagonal position of the slots 49, and as these levers swing inward the crimping-rollers 48 come in contact with the edge of the lid to be crimped, and as they are rotated rapidly about said edge the crimping is speedily and thoroughly effected. By employing the adjustable stop 40 the tightness or extent of the crimp can be accurately regulated. When the crimping is completed,

the treadle is released, the crimped pail removed, and another one inserted.

While I have shown and described my invention as embodied in the form which I at present consider best adapted to carry outits purposes, it will be understood that it is capable of modifications and that I do not desire to be limited in the interpretation of the following claims except as may be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent ofthe United States, is

1. In a crimping-machine, the combination with the crimping-rollers normally standing away from the periphery and also outside of the plane of the part to be crimped of the body to be operated on, and means for automatically rotating the rollers about said part, of a member adapted to be contacted and affected by the said body as the part to be crimped is brought into the plane of the rollers, and connections between said member and rollers operated when said member is contacted and affected to automatically bringthe rollers to the periphery of the body to crimp it.

2. In a crimping-machine, the combination with the crimping-rollers normally standing away from the periphery and also outside of the plane of the part to be crimped of the body to be operated on, and means for rotating the rollers about said part, of amember adapted to be contacted and affected by the said body as the part to be crimped is brought into the plane of the rollers, a support for said body by which it is moved, and connections between said member and rollers operated when said member is contacted and affected to automatically bring the rollers to the periphery to crimp the body.

3. In a crimping-machine, the combination with the crimping-rollers normally standing away from the periphery and also outside of the plane of the part to be crimped of the body to be operated on, and means for rotating the rollers about said part, of a member adapted to becontacted and affected by the said body as the part to be crimped is brought into the plane of the rollers, a support for said body by which it is moved under the control of the operator, and connections between said member and rollers operated when said member is contacted and affected to automatically bring the rollers to the periphery to crimp the body.

4. In a crimping-machine, the combination with the rotating roller-supporting disk, of the crimping-roller supports carried thereby and movable relative thereto, the rollers carried by said supports, the roller-controlling disk, the clamping-disk, means for rotating the roller-supporting disk, and connections between said disks to automatically move the roller-supports to bring the rollers against the body to be operated on as the clamping-disk is contacted and moved by said body.

6. In a crimping-machine, the combination with the rotating roller-supporting disk, of the crimping-roller supports carried thereby and'movable relative thereto, the rollers carried by said supports, the roller-controlling disk, the expanding-spring between said disks, the clamping-disk,antifriction-rollersbetween the clamping and roller-supporting disks, means for rotating the roller-supporting disk, and connections between the three disks to move the roller-supports to bring the rollers against the periphery of the body to be operated on as it contacts with and moves the clamping-disk.

7. In a crimping-machine, the combination with the standard provided with the vertical bearings, of the vertical driving-shaft located in said bearings, a support for the body to be headed directly beneath said shaft, the crimpin g-rollers carried by said shaft normally outside of the periphery and also the plane of the head to be crimped, means for rotating said shaft, a member connected with said shaft, and means for automatically moving the rollers inward into contact with the periphery of the head as said member is contacted by the body to be operated on as it is raised to bring the head into the plane of the rollers.

8. In a crimping-machine, the combination with the crimping-rollers normally standing outside of the periphery and also the plane of,

the. head to be crimped, and means for rotating the rollers about said head, of a movable member to be contacted and moved by the body to be crimped, an adjustable bearingbracket for said support, and connections between said rollers and movable member for automatically moving the rollers inward into contact with the periphery of the head as the said member is moved by the head as it is brought into the plane of the rollers.

9. In a crimping-machine, the combination with the rotating roller-supporting disk having the pairs of ears at the periphery thereof, of the levers pivoted in said ears and having the diagonal slots in their upper ends, the rollers carried by the lower ends of said levers, the roller-controlling disk having the pins in the periphery passing through the slots in the levers, and means for rotating the rollersupporting disk.

10. In a crimping-machine, the combination with the standard provided with the vertical bearings, the vertical driving-shaft located in said bearings, a support for the body to be headed directly beneath said shaft, the crimping-rollers carried by said shaft normally outside of the periphery and also the plane of the head to be crimped, means for rotating said shaft, means for automatically moving the rollers inward into contact with the periphery of the head as the support is raised to bring the head into the plane of the rollers, and an adjustable stop for said support to determine the amount of the crimp.

11. In acrimping-machine, the combination with the crimping-rollers normally standing outside of the periphery and also the plane of the head to be crimped, and means for rotating the rollers about said head, of a support for the body to be headed, means for automatically moving the rollers inward into contact with the periphery of the head as the support is raised to bring the head into the plane of the rollers, and an adjustable stop to limit the movement of the support and thereby the amount of the crimp.

12. In a crimping-machine, the combination with the crimping-rollers normally standing outside of the periphery and also the plane of the head to be crimped, and means for rotating the rollers about said head, of a support for the body to be headed, a clamping-disk to hold the head in position, means for automatically moving the rollers inward into contact with theperiphery of the head as the clamping-disk is moved by the raising of the support to bring the head into the plane of the rollers, and an adjustable stop to limit the movement of the support and thereby the amount of the crimp.

13. In a crimping-machine, the combination with the crimping-rollers normally standing outside of the periphery and also the plane of the head to be crimped, and means for rotating the rollers about said head, of a movable support for the body to be crimped, an adjustable bearing-bracket for said support, and means for automatically moving the rollers inward into contact with the periphery of the head as the support is moved to bring the head into the plane of the rollers.

In witness whereof I have hereunto set my hand this 17th day of October, 1903.

CHARLES E. MCDONALD.

Witnesses:

JOHN H. MOELROY, WILLIAM H. CHAMBERLIN. 

